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Knob spins freely without engaging the gas valve, preventing you from adjusting flame intensity or setting a specific heat level on the cooktop.
Cracked or deformed D-shaft insert causes the knob to lock up or become stiff, making it impossible to rotate the burner control to the desired setting.
Broken or worn internal insert allows the knob to fall off the valve stem during normal use, posing a safety risk and preventing reliable burner operation.
Original OEM plastic chrome insert cracks under heat and daily wear, causing cosmetic damage and functional failure of the burner control mechanism.
💡 Pro Tip: How to Tell If Your Cooktop Knob Needs Replacing
Your part is likely the culprit if you notice any of the following:
⚠️ The knob spins freely on the shaft without engaging the gas valve or adjusting flame level
⚠️ Visible cracks, chips, or a broken insert around the D-shaped shaft hole
⚠️ Burner flame cannot be set to a specific heat level — jumps from high to off without stopping in between
⚠️ Knob feels loose, wobbles, or falls off the valve stem during normal use
🔍 Quick check: Remove the knob and inspect the inner D-shaped insert. If the flat side of the D is cracked or the insert is deformed, the knob has failed internally. Measure your valve stem diameter (should be ~6.8 mm / 0.27 in) before ordering to confirm fitment.
📦 What's in the Box
✅ 1× WB03T10329 Burner Control Knob — 304 Stainless Steel, D-shaft, 6.8 mm insert, with metal guard ring
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Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
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